While some airlines do offer free WiFi, many flyers can't help but wonder why it isn't an option during all flights, seeing as how free WiFi is available just about anywhere else. Until the day when in-flight WiFi is available - and even free - across the board, we have a way you can get around this inconvenience and send messages to your friends and family on the other side of the plane. If you've got an iPhone, you're in luck, because AirDrop is the key to making this happen. Keep in mind that this hack will only work for people in proximity - it is AirDrop, after all - so you can't send messages to someone back home, but it's at least a start! Keep reading for your instructions to bookmark before your next flight.